I have a MBP mid-2012. Came with Mountain Lion, upgraded to Mavericks in 2013 and never touched OS X again. Short story: I need El Capitan to run professional apps, and this one can not be newer, because an essential hardware element will not work on Sierra or later. I installed High Sierra yesterday to confirm and as I had not installed El Capitan at the time, I can not do it now that Sierra / High Sierra have come out. Is there a safe source here to download the installer (torrent)?

I have an SSD drive that has been removed from a MacAir and placed in an eclipse. I must have screwed up the directory by deleting files from the drive and not disassembling it because the drive is invisible in DiskUtil. I can see it in Terminal, but when I try to erase the drive with the help of diskutil, it starts up and reaches 30%, and then stops with the message. error below. The player has been saved, so I want to start all over again. The reader was in JHFS + format. Help?

Macs very rarely support booting versions of macOS prior to the one they were delivered with – exceptions are rare and never greater than a one year release. This means that at least on a new machine, it is out of the question to partition and install an earlier version on bare metal.

Although CS3 supports Intel Macs without Rosetta, and that in theory, binary files should be launched on modern versions of macOS, compatibility with the latest versions is … mediocre … at better. There is some information circulating about it, but nothing is really guaranteed at work.

As it stands, your options are:

Try to get CS3 (or if you want to increase your chances, CS6) to work on a modern version of macOS

Continue using your old MacBook Pro (or another Mac) exclusively for CS3

I have an old MacMini (mid-2011) running macOS 10.11, 10.12 and 10.13. It did not allow to install macOS 10.14, so I had to order another macMini (used) (late 2012) which now runs macOS 10.13 and macOS 10.14 in separate partitions. Because running

$ hdiutil create -size b -srcfolder -ov -format UDBZ

on macOS 10.14 creates a dmg file that can not be opened on macOS 10.11, we need to bundle our applications on macOS 10.11.

I've tried creating an image of the macOS 10.11 partition on the old macMini and restoring it on the new one. The system failed and reported that he did not have enough permissions.

I've tried several ways to download the macOS 10.11 installation program, for example. using the link on https://support.apple.com/en-us/HT206886, but the AppStore of the new MacMini always tells me that my machine is too recent and the AppStore of the old MacMini just tells me that Mac OS 10.11 .6 "can not be installed on this computer".